Intelligent analysis of maleic hydrazide using a simple electrochemical sensor coupled with machine learning

2021 ◽  
Vol 13 (39) ◽  
pp. 4662-4673
Author(s):  
Lulu Xu ◽  
Ruimei Wu ◽  
Xiaoyu Zhu ◽  
Xiaoqiang Wang ◽  
Xiang Geng ◽  
...  
Keyword(s):  
Machine Learning ◽  
Electrochemical Sensor ◽  
Maleic Hydrazide ◽  
Low Cost ◽  
Electrochemical Sensing ◽  
Flexible Electrode ◽  
Porous Graphene ◽  
Sensing Platform ◽  
Intelligent Analysis

A simple intelligent electrochemical sensing platform based on a low-cost disposable laser-induced porous graphene flexible electrode for maleic hydrazide coupled with machine learning was successfully designed.

scholarly journals Nanoelectrode Arrays Fabricated by Thermal Nanoimprint Lithography for Biosensing Application

Biosensors ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 90
Author(s):  
Alessandra Zanut ◽  
Alessandro Cian ◽  
Nicola Cefarin ◽  
Alessandro Pozzato ◽  
Massimo Tormen
Keyword(s):  
Nanoimprint Lithography ◽  
Electrochemical Sensors ◽  
Low Cost ◽  
Scale Up ◽  
Electrochemical Sensing ◽  
Electrical Measurements ◽  
Boron Doped Diamond ◽  
Sensing Platform ◽  
Increased Sensitivity ◽  
Gliadin Protein

Electrochemical sensors are devices capable of detecting molecules and biomolecules in solutions and determining the concentration through direct electrical measurements. These systems can be miniaturized to a size less than 1 µm through the creation of small-size arrays of nanoelectrodes (NEA), offering advantages in terms of increased sensitivity and compactness. In this work, we present the fabrication of an electrochemical platform based on an array of nanoelectrodes (NEA) and its possible use for the detection of antigens of interest. NEAs were fabricated by forming arrays of nanoholes on a thin film of polycarbonate (PC) deposited on boron-doped diamond (BDD) macroelectrodes by thermal nanoimprint lithography (TNIL), which demonstrated to be a highly reliable and reproducible process. As proof of principle, gliadin protein fragments were physisorbed on the polycarbonate surface of NEAs and detected by immuno-indirect assay using a secondary antibody labelled with horseradish peroxidase (HRP). This method allows a successful detection of gliadin, in the range of concentration of 0.5–10 μg/mL, by cyclic voltammetry taking advantage from the properties of NEAs to strongly suppress the capacitive background signal. We demonstrate that the characteristics of the TNIL technology in the fabrication of high-resolution nanostructures together with their low-cost production, may allow to scale up the production of NEAs-based electrochemical sensing platform to monitor biochemical molecules for both food and biomedical applications.

High-performance electrochemical sensing platform based on sodium alginate-derived 3D hierarchically porous carbon for simultaneous determination of dihydroxybenzene isomers

2021 ◽  
Author(s):  
Liang Wei ◽  
Xinlong Huang ◽  
Xianqian Zhang ◽  
Xiande Yang ◽  
Jing Yang ◽  
...  
Keyword(s):  
Electrochemical Sensor ◽  
Simultaneous Determination ◽  
Porous Carbon ◽  
High Performance ◽  
Three Dimensional ◽  
Electrochemical Sensing ◽  
Dihydroxybenzene Isomers ◽  
Hierarchically Porous ◽  
Sensing Platform

A selective and sensitive electrochemical sensor based on three-dimensional hierarchically porous carbon was developed for simultaneous determination of dihydroxybenzene isomers.

scholarly journals An electrochemical sensor based on copper-based metal–organic framework-reduced graphene oxide composites for determination of 2,4-dichlorophenol in water

RSC Advances ◽  
2020 ◽  
Vol 10 (69) ◽  
pp. 42212-42220
Author(s):  
Manh B. Nguyen ◽  
Vu Thi Hong Nhung ◽  
Vu Thi Thu ◽  
Dau Thi Ngoc Nga ◽  
Thuan Nguyen Pham Truong ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Reduced Graphene Oxide ◽  
Metal Organic Framework ◽  
Electrochemical Sensing ◽  
Sensing Platform ◽  
Reduced Graphene ◽  
Metal Organic ◽  
Oxide Composites

In the present work, we reported the fabrication of a novel electrochemical sensing platform to detect 2,4-dichlorophenol (2,4-DCP) by using a copper benzene-1,3,5-tricarboxylate–graphene oxide (Cu–BTC/GO) composite.

Nickel clusters grown on three-dimensional graphene oxide–multi-wall carbon nanotubes as an electrochemical sensing platform for luteolin at the picomolar level

RSC Advances ◽  
2015 ◽  
Vol 5 (79) ◽  
pp. 64739-64748 ◽  
Author(s):  
Taotao Yang ◽  
Yansha Gao ◽  
Jingkun Xu ◽  
Limin Lu ◽  
Yuanyuan Yao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Catalytic Activity ◽  
Electrochemical Sensor ◽  
Three Dimensional ◽  
Electrochemical Sensing ◽  
Multi Wall Carbon Nanotubes ◽  
Nickel Clusters ◽  
Sensing Platform

This study focuses on enhancing the catalytic activity of metallic Ni by using 1D MWCNTs, 2D GO and GR, and 3D GO–MWCNTs as supporting matrixs for the fabrication of electrochemical sensor for detecting the flavonoid luteolin.

A novel and highly sensitive electrochemical sensor based on a high-quality modified graphene electrode for the determination of hydrochlorothiazide in pharmaceutical formulations and human plasma

2015 ◽  
Vol 7 (21) ◽  
pp. 9254-9260 ◽  
Author(s):  
Engin Er ◽  
Hüseyin Çelikkan ◽  
M. Levent Aksu ◽  
Nevin Erk
Keyword(s):  
Electrochemical Sensor ◽  
Human Plasma ◽  
Pharmaceutical Formulations ◽  
Electrochemical Activity ◽  
Electrochemical Sensing ◽  
High Quality ◽  
Sensing Platform ◽  
Highly Sensitive ◽  
Modified Graphene

An electrochemical sensing platform based on high-quality graphene was developed to detect hydrochlorothiazide (HCT) with a highly satisfactory electrochemical activity.

scholarly journals Biomass-derived porous graphene for electrochemical sensing of dopamine

RSC Advances ◽  
2021 ◽  
Vol 11 (25) ◽  
pp. 15410-15415
Author(s):  
Faisal Mahmood ◽  
Yisheng Sun ◽  
Caixia Wan
Keyword(s):  
Electrochemical Sensor ◽  
High Sensitivity ◽  
Electrochemical Sensing ◽  
Porous Graphene

Biomass-derived porous LIG as an electrochemical sensor for dopamine sensing with high sensitivity.

CVD graphene incorporating polymerized l-cysteine as an electrochemical sensing platform for simultaneous determination of dopamine and ascorbic acid

2017 ◽  
Vol 9 (47) ◽  
pp. 6689-6697 ◽  
Author(s):  
Danyu He ◽  
Shehong Li ◽  
Pu Zhang ◽  
Hongxia Luo
Keyword(s):  
Ascorbic Acid ◽  
Electrochemical Sensor ◽  
Simultaneous Determination ◽  
Electrochemical Sensing ◽  
Cvd Graphene ◽  
Sensing Platform

A novel electrochemical sensor based on a poly-l-cysteine/graphene platform was developed for the simultaneous determination of dopamine and ascorbic acid.

scholarly journals Highly Sensitive Detection of Trace Tetracycline in Water Using a Metal-Organic Framework-Enabled Sensor

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Jiezeng Chen ◽  
Hongying Shu ◽  
Pingping Niu ◽  
Pinghua Chen ◽  
Hualin Jiang
Keyword(s):  
Electrochemical Sensor ◽  
Electrode Materials ◽  
Limit Of Detection ◽  
Metal Organic Framework ◽  
Electrochemical Sensing ◽  
Sensitive Detection ◽  
Active Electrode ◽  
Sensing Platform ◽  
Metal Organic ◽  
Organic Framework

Due to the abuse application of antibiotics in the recent decades, a high level of antibiotics has been let out and remains in our environment. Electrochemical sensing is a useful method to sensitively detect antibiotics, and the key factor for a successful electrochemical sensor is the active electrode materials. In this study, a sensitive electrochemical sensing platform based on a metal-organic framework (MOF) of MIL-53 (Fe) was facilely fabricated. It shows highly selective and sensitive detection performance for trace tetracycline. Differential pulse voltammetry (DPV) was applied to analyze the detection of tetracycline. The linear range of tetracycline detection was 0.0643 μmol/L-1.53 μmol/L, and the limit of detection (LOD) is 0.0260 μmol/L. Furthermore, the MOF-enabled sensor can be effectively used in actual water bodies. The results indicate that the electrochemical sensor is a high potential sensing platform for tetracycline.

An electrochemical sensor for nitrobenzene using π-conjugated polymer-embedded nanosilver

The Analyst ◽  
2016 ◽  
Vol 141 (7) ◽  
pp. 2259-2269 ◽  
Author(s):  
Victor M. Kariuki ◽  
Sohaib A. Fasih-Ahmad ◽  
Francis J. Osonga ◽  
Omowunmi A. Sadik
Keyword(s):  
Silver Nanoparticles ◽  
Electrochemical Sensor ◽  
Polymer Matrix ◽  
Conjugated Polymer ◽  
Amic Acid ◽  
Electrochemical Sensing ◽  
Sensing Platform

A novel electrochemical sensing platform for nitrobenzene has been developed using silver nanoparticles (AgNPs) embedded in the poly(amic) acid (PAA) polymer matrix (PAA–AgNPs).

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